测试文档

package com.tang.consumptionRecord;

import com.tang.consumptionRecord.domain.Feedback;
import com.tang.consumptionRecord.util.JDBCUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.security.NoSuchAlgorithmException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;

public class test {
    private static QueryRunner queryRunner = new QueryRunner(JDBCUtils.getDataSource());

    public static void main(String[] args) throws NoSuchAlgorithmException, SQLException {
        HashSet<String> objects = new HashSet<>();
        objects.add("hello");
    }
}